Electric igniting device for gas-engines



(No Model.) 7

/ B. TREMPE'R; ELECTRIC IQNITING 'D'EVIGE FOR GAS ENGINES. No. 503,016; Patented Aug; 8 1893.

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.W/TNESSES." INVENTOI? UNITED STATES PATENT. OFFICE.

FRANK ELLSWORTH TREMPER, OF NElV YORK, N. Y., ASSIGNOR TO THE SAFETY VAPOR ENGINE COMPANY, OF NEW JERSEY.

ELECTRIC IGNITING DEVICE FOR GAS-ENGINES.

SPECIFICATION forming part of Letters latentNo. 503,016, dated August 8, 1893.

Application filed February 8, 1893. Serial No. 461,456. (No model.)

To all whom it may concern.-

Be it known that I, FRANK ELLSWORTH TREMPER, of the city, county, and State of New York, have invented a new and Improved Electric Igniting Device for Gas-Engines, of which the following is a full, clear, and exact description.

The object of the invention is to'provide a new and improved igniting device for gas engines, which is simple and durable in construction, very effective in operation and arranged to ignite the charge in the cylinder always at the proper time, to positively prevent a premature explosion or failure of ignition. v

The invention consists of permanently separated electrodes adapted to be engaged by flexible sparking strips.

The invention also consists of certain parts and details, and combinations of the same, as will be hereinafter described and then pointed out in the claim.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the views.

Figure 1 is a sectional side elevation of the improvement as applied. Fig. 2 is a similar View of a modified form of the same. Fig. 3 is a plan view of another form of the improvement; and Fig. 4 is a sectional side elevation of the same. 7

In the cylinder A of the gas engine reciprocates, in the usual manner, the piston B, on the upper end of which is secured a bracket bolt 0 fastened in place by a jam nut D, having a suitable handle E for conveniently screwing the nut tight on the piston to lock the bracket bolt in place. The bracket bolt supports a flexible sparking strip F having two arms F and F adapted to make contact with the electrodes G and G respectively, held in the walls of the cylinder and permanently separated one from the other, as plainly shown in the drawings.

The outer ends of the electrodes G and G are connected with the wires leading to the commutator and battery, of approved construction. The flexible sparking strip F is held on the bracket bolt 0 between two layers H and H of an insulating material, such as asbestus, and the strip is secured in place between the said layers by a screw or bolt I held on the bracket bolt. Each of the permanently separated electrodes G and G passes through a cylindrical insulation J, fitted in an aperture in the wall of the cylinder A, and on the ends of this cylindrical insulation abut the insulating washers J and J made of an insulating material similar to that of the cylinder'J, and preferably asbestus. If desired one electrode may not be insulated.

As shown in the drawings, the electrodes G and'G are made in the shape of bolts, with their sharp-edged heads G at the inner ends inside of the cylinder A, to form contact points for the arms F, F, of the flexible sparking strip F.

The outer threaded end of each electrode G or G is engaged by jam nut K screwing against the washer J to securely hold the electrode in the proper place. The inner washer J is engaged by a collar L secured on the electrode near the head thereof, as will be readily understood by reference to the drawings. 7

By the arrangement described, the flexible sparking strip is insulated from the cylinder B and the electrodes one or both are likewise insulated from the cylinder A and in addition, the strip, as well as the electrodes, is adj ustable so as to insure the proper contact of the strips with the electrodes. The commutator is also arranged so as to cut out the spark every other revolution of the piston B, as an ignition of the gaseous mixture in the cylinder is only required at every other revolution, as the device is principally intended for four-period gas engines of any approved construction.

It is understood that when the piston B reciprocates in the cylinder A, the sparking strip F is brought in contact by its arms F and F with the electrodesG and G, so as to produce a spark at the time the piston is on the downward stroke and the arms of the strip moving away from their electrodes. The spark ignites the gaseous mixture in the cylinder A to propel the piston in the usual manner.

I am aware that permanently separated rigid electrodes are not new, as they are shown in my application, Serial N 0. 394,056, filed by me May 25, 1891. I am also aware that permanently separated flexible electrodes are not new, as they are shown in my application, Serial No. 453,828, filed by me December 2, 1892.

Permanently separated electrodes, of which one is perforated, are shown in the patent to Eisenhuth, No. 436,936, dated September 23, 1890, and I do not claim the same.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- FRANK ELLSWORTII TREMPER.

Witnesses:

W. E. TREMPER, J. F. BUCK. 

